Study 77b

S. Didukh
Victory AT
2015
1st/2nd Prize

White wins

1. Re3+ Kd1! 1... Kxd2 2. Rbd3+ Kc2 3. Rc3+ Kd2 4. Red3+ +- 2. Ra3! 2. Rxe6? Nxb3 3. Kxb3 Bd5+ = 2... Bd5+ 3. Ka1! 3. Kb1? Nc4 4. Rad3 Be4! 5. Rxe4 Nxc5 = 3... Nc4 4. Rad3! Be4! 4... Nxe3 5. dxe3+! Ke2 6. Rxd5 +-; 4... Nf4 5. Rd4 +- 5. Rxe4 Nxc5 6. Rd8! 6. Rd5? Nxe4 7. d3 Kd2! mutual zugzwang 8. dxe4+ (8. dxc4+ Kc3 9. c5 Kc4! 10. c6 Kxd5 11. c7 Nd6 =) 8... Ke3 9. e5 Ke4! 10. e6 Kxd5 11. e7 Nd6 = 6... Nxe4 7. d3! Kd2 8. Rd5!

mutual zugzwang

8... Nb6 8... Nf6 9. dxc4+ Kc3 10. Rf5 Ne4 11. c5 +- 9. dxe4+ Ke3 10. Rb5 Nc4 11. e5 +-

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Related studies: Study 77

Study 77a

J. Pitkanen
Suomen Tehtäväniekat
1989
Special Prize

White wins

1. Nb6! Nxb6 1... bxc6 2. Nxd5 +- 2. c7+ Ka8 3. c3!! 3. c4? Ka7 4. c5 Ka8 mutual zugzwang 5. cxb6 stalemate 3... Ka7 4. c4 Ka8 5. c5 +-

mutual zugzwang

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Related studies: Study 77

Study 77

Árpád Rusz
e4e5
2013

Draw

1. Ne3! 1. Bb2? f5! (1... Kxc2? 2. Bxa1 Kxd1 3. e4! Kc2 4. e5! =) 2. e3 Kxc2 3. Bxa1 Kxd1 -+ 1... f6! 2. c3!! mutual zugzwang 2. c4? f5 mutual zugzwang 3. c5 f4 -+ mutual zugzwang 2... f5 3. c4 f4 4. c5

mutual zugzwang

4...fxe3 4... f3 5. exf3 stalemate 5. Bc1! mutual zugzwang 5...Kc2 stalemate

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Related studies: Study 77a Study 77b

Study 72

Árpád Rusz
Fritz-100 MT
2012
2nd Prize

White wins

Thematic try: 1. h5? e3 2. Ne2 Nd3 3. Ng3 Nf2 4. Kf4 Nd3+ 5. Ke4 Nc5+ 6. Ke5 Nd3+ 7. Kf6 7. Kf5 Nf2 positional draw - Rundlauf by the wK 7... e2! 8. Nxe2 Nf4! mutual zugzwang

WTM

9. Ng3 9. Nxf4 stalemate 9... Nxg6! 10. hxg6 stalemate.

Solution: 1. Nh5!! e3 1... Nb7 2. g7 Kh7 3. Kxe4 Nd6+ 4. Ke5 Ne8 5. Nf6+ +- 2. Ng3 Ne6! 3. Kf6! 3. Kxe6? Kxg6 = 3... e2! 4. Nxe2 Nf4! 5. h5! mutual zugzwang (5. Nxf4? stalemate)

BTM

5... Nxh5+ 6. Kf7 mutual zugzwang 6...Ng7 7. Ng3 mutual zugzwang 7. Nc3? Nf5 8. Ne4 Kh5 9. Ng3+ (9. Kf6 Kg4 10. Nf2+ Kf4 =) 9... Nxg3 10. g7 Nf5 11. g8=Q Nh6+ = 7... Ne8! 8. Ne4! mutual zugzwang 8...Ng7 9. Nd6 mutual zugzwang 9...Nh5 10. Nf5+ Kg5 11. Ng3! Nxg3 (11... Nf6 12. g7 +-) 12. g7 Nf5 13. g8=Q+ +-

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Study 46

Árpád Rusz
Internet (Mat Plus Forum)
2007

Draw

1. Nd7+ 1. Ne6+? Ke7 2. Nxc7 Bb7 3. g7 Rg3 -+ (3... Kf7? 4. Ne8! =) 1... Kg7 1... Ke7 2. Nxf3 (2. g7? Rf4+ 3. Ke3 Bd5 -+) 2... Bxf3 3. g7 Kf7 4. Ne5+ =; 1... Kg8 2. Nxf3 Bxf3 3. Nf6+ Kh8 4. g7+! Kxg7 5. Ne8+ = 2. Ne6+ 2. Nxf3? Bxf3 -+ 2... Kxg6 3. Nxc7 Rf4+ 3...Bb7 4. Ne5+ = 4. Ke3 Re4+ 5. Kd3 Bc6 5... Bb7 6. Nc5 = 6. Ne6!! mutual zugzwang 6. Nb8? Bb7 -+

6... Re1 6... Rxe6 7. Nf8+ =; 6... Bb7 7. Ndc5! = (7. Nec5? Re7 8. Nxb7 Rxd7+ -+); 6... Kf5 7. Nd4+ =; 6...Rh4 7. Ne5+ = 7. Kd2 Re4 8. Kd3 positional draw

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Study 30

Árpád Rusz
Chess Life Magazine
2008

Draw

1.e7! [1.Kxh5? Nxf1 2.e7 Ng3+!–+; 1.Nd2? Ng4+! (1...g4? 2.e7! Kxe7 3.Kg5! f3 4.Kxh5 Kf6 5.Kh4 Kf5 6.Kg3=) 2.Kxh5 Kf5! 3.e7 Nf6+ 4.Kh6 g4 5.Kg7 Ne8+ 6.Kf7 Nc7–+; 1.Nh2? Ng4+–+] 1...Kxe7 [1...Ng4+ 2.Kxh5 Kf5 3.e8N!=] 2.Kxh5! [2.Kxg5? Nxf1 3.Kxf4 Kf6–+] 2...Kf6 [2...Nxf1 3.Kxg5 f3 4.Kf4 f2 (4...Nd2 5.Ke3=; 4...Nh2 5.Kg3=) 5.Kf3=] 3.Nh2 mutual zugzwang 3...Kf5 4.Ng4!

mutual zugzwang

4...Ke4 [4...Nxg4 stalemate; 4...Nd5 5.Nh6+ Kf6 6.Ng4+ Kf5 7.Nh6+ perpetual check] 5.Nf2+ Kf5 6.Ng4 positional draw

The saving stalemate from this study first occured in the game Grischuk-J.Polgár (Biel, 2007).

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Study 17 + Albino 4

Árpád Rusz
Problem Online
2004-06
Special Prize

White wins

1.Be3 h2+! [After 1...Rxe3 2.dxe3 h2+ white can choose the order to capture the black pawns avoiding the stalemate: 3.Kxg2! h1Q+ 4.Kxh1+-; 1...Kd1 2.Qa4++-] 2.Kxh2 Rxe3! 3.Kxg2! [Of course not 3.dxe3? g1Q+ (3...g1R? 4.e4! Rg2+! 5.Kh3!+-) 4.Kxg1 stalemate] 3...Rc3! [3...Re4 4.Qd3 Rf4 5.Qg3+ Kd1 6.Qxf4 e1Q 7.d4+-; After 3...Ra3 white has an interesting queen manoeuvre: 4.Qb5! Kd1 5.Qb1+ Kxd2 6.Qb2+ Kd1 7.Qd4+ Ke1 8.Qb4+ Kd1 9.Qd6+ Kc2 10.Kf2+-] 4.Qd5!

mutual zugzwang

[4.dxc3? stalemate; The thematic try 4.Qd4? also stops 4...Ra3? using a queen manoeuvre and the WCCT-7 Theme 5.Qb2 Kd1 6.Qb1+ Kxd2 7.Qb2+ Kd1 8.Qd4+ Ke1 9.Qb4+ +- but there is another defence: 4...Rc8! 5.Kf3 Rf8+ 6.Ke3 Kf1! 7.Qc4 Re8+ 8.Kf3 Rf8+ 9.Ke3 Re8+ perpetual check] 4...Rc8 4...Ra3 5.Qb5! Ra8 6.Kf3 Ra3+ [6...Rf8+ 7.Ke3+-] 7.d3! Albino 7...Kf1 8.Qf5! e1Q 9.Qh3+ +- 5.Kf3 Rf8+ 6.Ke3 Kf1 (6...Re8+ 7.Kd3+-) 7.Qh1#

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